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core/rawdb: separate raw database access to own package (#16666)

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This commit is contained in:
Péter Szilágyi
2018-05-07 14:35:06 +03:00
committed by GitHub
parent 5463ed9996
commit 6cf0ab38bd
52 changed files with 1288 additions and 1295 deletions
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55
core/genesis.go
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@ -28,6 +28,7 @@ import (
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/common/hexutil"
"github.com/ethereum/go-ethereum/common/math"
"github.com/ethereum/go-ethereum/core/rawdb"
"github.com/ethereum/go-ethereum/core/state"
"github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/ethdb"
@ -155,7 +156,7 @@ func SetupGenesisBlock(db ethdb.Database, genesis *Genesis) (*params.ChainConfig
}
// Just commit the new block if there is no stored genesis block.
stored := GetCanonicalHash(db, 0)
stored := rawdb.ReadCanonicalHash(db, 0)
if (stored == common.Hash{}) {
if genesis == nil {
log.Info("Writing default main-net genesis block")
@ -177,14 +178,11 @@ func SetupGenesisBlock(db ethdb.Database, genesis *Genesis) (*params.ChainConfig
// Get the existing chain configuration.
newcfg := genesis.configOrDefault(stored)
storedcfg, err := GetChainConfig(db, stored)
if err != nil {
if err == ErrChainConfigNotFound {
// This case happens if a genesis write was interrupted.
log.Warn("Found genesis block without chain config")
err = WriteChainConfig(db, stored, newcfg)
}
return newcfg, stored, err
storedcfg := rawdb.ReadChainConfig(db, stored)
if storedcfg == nil {
log.Warn("Found genesis block without chain config")
rawdb.WriteChainConfig(db, stored, newcfg)
return newcfg, stored, nil
}
// Special case: don't change the existing config of a non-mainnet chain if no new
// config is supplied. These chains would get AllProtocolChanges (and a compat error)
@ -195,15 +193,16 @@ func SetupGenesisBlock(db ethdb.Database, genesis *Genesis) (*params.ChainConfig
// Check config compatibility and write the config. Compatibility errors
// are returned to the caller unless we're already at block zero.
height := GetBlockNumber(db, GetHeadHeaderHash(db))
if height == missingNumber {
height := rawdb.ReadHeaderNumber(db, rawdb.ReadHeadHeaderHash(db))
if height == nil {
return newcfg, stored, fmt.Errorf("missing block number for head header hash")
}
compatErr := storedcfg.CheckCompatible(newcfg, height)
if compatErr != nil && height != 0 && compatErr.RewindTo != 0 {
compatErr := storedcfg.CheckCompatible(newcfg, *height)
if compatErr != nil && *height != 0 && compatErr.RewindTo != 0 {
return newcfg, stored, compatErr
}
return newcfg, stored, WriteChainConfig(db, stored, newcfg)
rawdb.WriteChainConfig(db, stored, newcfg)
return newcfg, stored, nil
}
func (g *Genesis) configOrDefault(ghash common.Hash) *params.ChainConfig {
@ -267,29 +266,19 @@ func (g *Genesis) Commit(db ethdb.Database) (*types.Block, error) {
if block.Number().Sign() != 0 {
return nil, fmt.Errorf("can't commit genesis block with number > 0")
}
if err := WriteTd(db, block.Hash(), block.NumberU64(), g.Difficulty); err != nil {
return nil, err
}
if err := WriteBlock(db, block); err != nil {
return nil, err
}
if err := WriteBlockReceipts(db, block.Hash(), block.NumberU64(), nil); err != nil {
return nil, err
}
if err := WriteCanonicalHash(db, block.Hash(), block.NumberU64()); err != nil {
return nil, err
}
if err := WriteHeadBlockHash(db, block.Hash()); err != nil {
return nil, err
}
if err := WriteHeadHeaderHash(db, block.Hash()); err != nil {
return nil, err
}
rawdb.WriteTd(db, block.Hash(), block.NumberU64(), g.Difficulty)
rawdb.WriteBlock(db, block)
rawdb.WriteReceipts(db, block.Hash(), block.NumberU64(), nil)
rawdb.WriteCanonicalHash(db, block.Hash(), block.NumberU64())
rawdb.WriteHeadBlockHash(db, block.Hash())
rawdb.WriteHeadHeaderHash(db, block.Hash())
config := g.Config
if config == nil {
config = params.AllEthashProtocolChanges
}
return block, WriteChainConfig(db, block.Hash(), config)
rawdb.WriteChainConfig(db, block.Hash(), config)
return block, nil
}
// MustCommit writes the genesis block and state to db, panicking on error.